An Unflattened Identity and Change Knowledge Graph

Sumatra island

place · 2 mentions

One of the destinations mentioned for the coffee plant's conveyance from Java.

DBpedia ↗PopulatedPlacePlaceLocationIsland

Other senses of “Sumatra”

unspecified port

Connections

The concepts, people, and places this entity is most linked to by claims — node size is mention count, colour is type, dashed nodes are other senses of the same word.

SumatraSumatra (—)Sumatra (port)Java — 1 shared claim287,179 piculs of coffee — 1 shared claimCoffee — 1 shared claim_coffee_ — 1 shared claimcompulsory system — 1 shared claimJava287,179 piculs of c…Coffee_coffee_compulsory system
ConceptPlace

Defining properties

Perspectives

Claims grouped by the voice that makes them.

William H. Ukers (author)

  • Sumatra has climate and soil similar to Java
    With climate and soil similar to Java
    judge verdicts (2)
    • groundedness 1.00 pass — The claim is directly stated in the passage: 'With climate and soil similar to Java, the island of Sumatra has the added advantage...' The subject, predicate, and object are all explicitly present in the text without requiring outside knowledge or generalization.
    • qualifier_fidelity 1.00 pass — All qualifiers are faithful to the passage. The viewpoint is correctly attributed to the author (the passage presents this as its own assertion, not attributing it to a named source). The stance is 'asserts' which matches the declarative presentation. The sentiment is neutral, reflecting the factual tone of the comparison. The time qualifiers are all null, which is appropriate since the passage provides no temporal restriction on this claim. The context is empty, which is correct as the passage does not restrict this to a particular sense or role. The quote 'With climate and soil similar to Java' appears verbatim in the passage and directly supports the claim.
  • Sumatra produced 287,179 piculs of coffee in 1920
    judge verdicts (2)
    • groundedness 1.00 pass — The claim is directly stated in the passage: 'Sumatra produced 287,179 piculs of coffee in 1920.' The subject, predicate, object, and time period all match exactly with the source text.
    • qualifier_fidelity 1.00 pass — All qualifiers are faithful to the passage. The viewpoint is correctly attributed to the author (the passage itself states the production figure without attributing it to a named source). The stance of 'asserts' is appropriate as the passage presents this as factual information. The sentiment is neutral, matching the factual tone of the passage. The time qualifier correctly specifies 1920, which matches the passage's statement 'in 1920'. The context is appropriately empty as the passage does not restrict the claim to a specific sense or period. The quote appears verbatim in the passage and directly supports the claim.
  • coffee was first propagated in sumatra Sumatra early in the eighteenth century ⟨west coast districts⟩
    the plant was first propagated early in the eighteenth century
    judge verdicts (2)
    • groundedness 1.00 pass — The claim is directly stated in the passage: 'Practically all the coffee districts in Sumatra are on the west coast, where the plant was first propagated early in the eighteenth century.' The subject, predicate, and time period are all explicitly supported by the source text.
    • qualifier_fidelity 0.90 pass — The claim is highly faithful to the passage. Viewpoint, stance, and sentiment are all correct. Time qualifiers are accurate - 'early in the eighteenth century' is properly normalized to 1700-1730. Context is appropriately specified as 'west coast districts' since the passage explicitly states 'Practically all the coffee districts in Sumatra are on the west coast, where the plant was first propagated early in the eighteenth century.' The quote is verbatim and supports the claim. Minor note: the quote technically includes more context ('Practically all the coffee districts in Sumatra are on the west coast, where') but the isolated quote provided is accurate. No unfaithful qualifiers detected.
  • coffee is coming from Sumatra ⟨world's best⟩
    assertspositivesource: coffee-pg28500
    Some of the world's best coffees are still coming from Sumatra
    judge verdicts (2)
    • groundedness 1.00 pass — The claim is directly stated in the passage: 'Some of the world's best coffees are still coming from Sumatra.' The passage explicitly asserts this positive statement about Sumatra's coffee production.
    • qualifier_fidelity 1.00 pass — All qualifiers are faithful to the passage. The viewpoint is correctly attributed to the author (implicit narrative voice). The stance is 'asserts' as the passage makes a direct statement without dispute. The sentiment is positive, reflecting the passage's commendatory tone about Sumatra's coffee quality. The time is correctly null, as the passage provides no specific temporal scope for this claim. The context 'world's best' accurately reflects the passage's restriction of the claim to high-quality coffees. The quote 'Some of the world's best coffees are still coming from Sumatra' appears verbatim and directly supports the claim.
  • compulsory system was given up in Sumatra 1908
    The compulsory system was given up in this island in 1908
    judge verdicts (2)
    • groundedness 1.00 pass — The claim is directly stated in the passage: 'The compulsory system was given up in this island in 1908, three years after it was abandoned in Java.' The subject, predicate, object, and time are all explicitly supported by the text with no rewording or outside knowledge required.
    • qualifier_fidelity 1.00 pass — All qualifiers are faithful to the passage. The viewpoint is correctly attributed to the author (the passage presents this as factual information without attributing it to a named source). The stance is appropriately 'asserts' as the passage states this as fact. The sentiment is neutral, matching the passage's neutral tone. The time qualifier correctly identifies 1908 as both valid_from and valid_to, matching the passage's statement 'in 1908'. The context is appropriately empty as the passage provides no specific sense or role restriction. The quote is verbatim from the passage and directly supports the claim.

Change over time

early in the eighteenth century
  • was first propagated in sumatra coffee
1908
  • was given up in compulsory system
1920
  • produced 287,179 piculs of coffee